Observation 167215: Physcia adscendens (Fr.) H. Olivier

When: 2014-06-12

Collection location: 7700 SE Stephens, Portland, Multnomah Co., Oregon, USA [Click for map]

Who: Daniel B. Wheeler (Tuberale)

No specimen available

Lichen has look of dwarf Hypogymnia, with white veins on thallus, cilia on lobes tipped with black or dark-brown, reverse concolorous with surface. Found while trimming purple wallflower in front yard. Thallus may have pruinae or soridia on older part of thallus. Two small black holes in thallus observed. A couple of tube-like apothecia?, hollow, also observed. Apothecia? not over 3mm tall.


Green-gray lichen on wallflower stem. Notice cilia.
Some of cilia black or dark-brown tipped.
Cilia growing from edges of thallus.
Lichen with hair-like cilia.
Reverse concolorous with surface.

Proposed Names

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Add Comment
Thank you, zaca,
By: Daniel B. Wheeler (Tuberale)
2014-06-12 13:12:38 PDT (-0700)

From the description in Brodo, Physcia adscendens sounds promising.

Found while pruning
By: Daniel B. Wheeler (Tuberale)
2014-06-12 10:55:50 PDT (-0700)

a perennial purple wallflower, in front yard. Stem perhaps 5 years old, dead, with this one lichen growing on it. Small tubes (<3mm) which may be apothecia-like structures or may just be open-ended tubes also observed. No cilia on reverse, but cilia on lobe tips. Hope Jason has time to look at this.

Created: 2014-06-12 10:52:06 PDT (-0700)
Last modified: 2014-06-14 11:31:57 PDT (-0700)
Viewed: 13 times, last viewed: 2017-06-18 05:30:52 PDT (-0700)
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